Immature follicles can reduce the chances of conception or not conceive. The follicles need to develop and expel normally, and meet with sperm at a specific time and environment to form a fertilized egg. The size of a mature follicle is between 18-25mm. A follicle that is too large or too small can affect normal conception. It is only when the follicles are mature and functional that they can meet and fertilize the sperm and develop into an embryo under the normal endocrine environment of the body. If the follicles are immature and not well developed, it is difficult for the ovaries to ovulate under the action of external factors, such as ovulation promotion, and the eggs are not functionally sound, so it is difficult for them to meet the sperm and form a fertilized egg. Therefore, the chances of conceiving with immature follicles are greatly reduced, but it does not 100% exclude the inability to conceive. It is important to ensure a stable endocrine environment and perfect ovarian function to ensure the normal development and discharge of follicles to complete normal conception.